678586080 has 216 divisors, whose sum is σ = 2269108296. Its totient is φ = 170455040.

The previous prime is 678586067. The next prime is 678586087. The reversal of 678586080 is 80685876.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678586087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16550860 + ... + 16550900.

It is an arithmetic number, because the mean of its divisors is an integer number (10505131).

Almost surely, 2^678586080 is an apocalyptic number.

678586080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678586080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1134554148).

678586080 is an abundant number, since it is smaller than the sum of its proper divisors (1590522216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

678586080 is a wasteful number, since it uses less digits than its factorization.

678586080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 678586080 is about 26049.6848349457. The cubic root of 678586080 is about 878.7560247040.

The spelling of 678586080 in words is "six hundred seventy-eight million, five hundred eighty-six thousand, eighty".